| Original Articles |
|
|
|
|
Simultaneous Static Strain, Temperature and Vibration Measurement
Using an Integrated FBG/EFPI Sensor
|
| ZENG Xiang-Kai;RAO Yun-Jiang |
| Department of Optoelectric Engeering, Chongqing University,
Chongqing 400044
|
|
| Cite this article: |
|
ZENG Xiang-Kai, RAO Yun-Jiang 2001 Chin. Phys. Lett. 18 1617-1619 |
|
|
|
Abstract A novel technique for simultaneous measurement of static strain, temperature and vibration in health monitoring of structures is demonstrated using an integrated in-fiber Bragg grating(FBG)/extrinsic Fabry-Pérot interferometer (EFPI) sensor. The EFPI sensor provides static strain and vibration information simultaneously by using the channel-spectrum method and the low-coherence interferometric technique, respectively. The FBG sensor is used for temperature measurement. The experimental results show that a static strain accuracy of ±20με, a temperature accuracy of ±1°C and a vibration resolution of 1 nm have been achieved with a good repeatability.
|
| Keywords:
42.81.Pa
42.81.Cn
|
|
|
Published: 01 December 2001
|
|
| PACS: |
42.81.Pa
|
(Sensors, gyros)
|
| |
42.81.Cn
|
(Fiber testing and measurement of fiber parameters)
|
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
